Results 191 to 200 of about 25,641 (336)

Effect of Water Suppression and Metabolite Cycling on Quantification of 1H MRS Spectra in the Human Brain at 3 Tesla

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study investigates the effect of VAPOR water suppression and metabolite cycling on metabolite quantification and macromolecules in proton magnetic resonance spectroscopy. Methods Single‐voxel semi‐LASER spectra (TR/TE = 3000/28 ms) and metabolite‐nulled spectra (macromolecules) were acquired in five healthy subjects in the ...
Dinesh K. Deelchand   +1 more
wiley   +1 more source

Navigator‐Based Slice Tracking for Multiband Accelerated Liver DWI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Clinical liver diffusion‐weighted imaging (DWI) suffers from long measurement time and respiratory motion. In this study, we employ a navigator‐based slice tracking technique (NAV) to prospectively compensate for respiratory motion in multiband (MB) accelerated liver DWI.
Ke Zhang   +8 more
wiley   +1 more source

Signal and Contrast Optimization With Predicted Excitations (SCOPE) for Accelerating Large FOV Body Imaging at UHF

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Large FOV turbo‐spin‐echo (TSE) imaging at ultra‐high field (UHF) remains challenging due to B1+ inhomogeneity and peak specific absorption rate (pSAR) limitations. This work presents a new time‐interleaved acquisition of modes (TIAMO) framework called SCOPE (Signal and Contrast Optimization with Predicted Excitations), which overcomes
Tobey D. Haluptzok   +2 more
wiley   +1 more source

Software-Defined Radio Implementation of a LoRa Transceiver. [PDF]

open access: yesSensors (Basel)
de Omena Simas JP   +2 more
europepmc   +1 more source

On the Union Bounds of Self-Concatenated Convolutional Codes

open access: yes, 2009
Butt, Muhammad Fasih   +2 more
core   +1 more source

Simulation of Phase-Shift Operated Interleaved DC/DC Converter with Unfolding Inverter

open access: bronze, 2016
Savyasachi. G. K   +3 more
openalex   +1 more source

Using U‐Nets to Predict the Effects of Head Motion on Simulated Specific Absorption Rate for Ultra‐High Field Magnetic Resonance Imaging With Parallel Transmission

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultrahigh‐field MRI requires careful management of the specific absorption rate (SAR), which is subject and subject‐position dependent. Within‐scan subject motion may exacerbate local SAR exposure, necessitating large safety margins to prevent SAR underestimation, which hampers imaging performance.
Katherine Anna Blanter   +4 more
wiley   +1 more source

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